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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * under the terms of the GNU General Public License version 2 only, as

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 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

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 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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 */

/*

 * @test

 * @summary Similar to GCDuringDumping.java, this test adds the -XX:SharedArchiveConfigFile

 *          option for testing the interaction with GC and shared strings.

 * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds /test/hotspot/jtreg/runtime/cds/appcds/test-classes

 * @requires vm.cds.archived.java.heap

 * @modules jdk.jartool/sun.tools.jar

 * @build sun.hotspot.WhiteBox GCDuringDumpTransformer GCSharedStringsDuringDumpWb

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox

 * @run main/othervm/timeout=480 GCSharedStringsDuringDump

 */

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import jdk.test.lib.cds.CDSOptions;

import jdk.test.lib.process.OutputAnalyzer;

import jdk.test.lib.process.ProcessTools;

import sun.hotspot.WhiteBox;

public class GCSharedStringsDuringDump {

    public static String appClasses[] = {

        "GCSharedStringsDuringDumpWb",

    };

    public static String agentClasses[] = {

        "GCDuringDumpTransformer",

    };

    public static void main(String[] args) throws Throwable {

        String agentJar =

            ClassFileInstaller.writeJar("GCDuringDumpTransformer.jar",

                                        ClassFileInstaller.Manifest.fromSourceFile("GCDuringDumpTransformer.mf"),

                                        agentClasses);

        String appJar =

            ClassFileInstaller.writeJar("GCSharedStringsDuringDumpApp.jar", appClasses);

        String gcLog = Boolean.getBoolean("test.cds.verbose.gc") ?

            "-Xlog:gc*=info,gc+region=trace,gc+alloc+region=debug" : "-showversion";

        String sharedArchiveCfgFile =

            System.getProperty("user.dir") + File.separator + "GCSharedStringDuringDump_gen.txt";

        try (FileOutputStream fos = new FileOutputStream(sharedArchiveCfgFile)) {

            PrintWriter out = new PrintWriter(new OutputStreamWriter(fos));

            out.println("VERSION: 1.0");

            out.println("@SECTION: String");

            out.println("31: shared_test_string_unique_14325");

            for (int i=0; i<100000; i++) {

                String s = "generated_string " + i;

                out.println(s.length() + ": " + s);

            }

            out.close();

        }

        JarBuilder.build(true, "WhiteBox", "sun/hotspot/WhiteBox");

        String whiteBoxJar = TestCommon.getTestJar("WhiteBox.jar");

        String bootClassPath = "-Xbootclasspath/a:" + whiteBoxJar;

        for (int i=0; i<2; i++) {

            // i = 0 -- run without agent = no extra GCs

            // i = 1 -- run with agent = cause extra GCs

            String extraArg = (i == 0) ? "-showversion" : "-javaagent:" + agentJar;

            String extraOption = (i == 0) ? "-showversion" : "-XX:+AllowArchivingWithJavaAgent";

            OutputAnalyzer output = TestCommon.dump(

                                appJar, TestCommon.list("GCSharedStringsDuringDumpWb"),

                                bootClassPath, extraArg, "-Xmx32m", gcLog,

                                "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile,

                                "-XX:+UnlockDiagnosticVMOptions", extraOption);

            if (output.getStdout().contains("Too many string space regions") ||

                output.getStderr().contains("Unable to write archive heap memory regions") ||

                output.getStdout().contains("Try increasing NewSize") ||

                !output.getStdout().contains("oa0 space:") ||

                output.getExitValue() != 0) {

                // Try again with larger heap and NewSize, this should increase the

                // G1 heap region size to 2M

                TestCommon.testDump(

                    appJar, TestCommon.list("GCSharedStringsDuringDumpWb"),

                    bootClassPath, extraArg, "-Xmx8g", "-XX:NewSize=8m", gcLog,

                    "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile,

                    "-XX:+UnlockDiagnosticVMOptions", extraOption);

            }

            TestCommon.run(

                "-cp", appJar,

                bootClassPath,

                extraArg,

                "-Xlog:cds=info,class+path=info",

                "-Xmx32m",

                "-XX:+PrintSharedSpaces",

                "-XX:+UnlockDiagnosticVMOptions",

                extraOption,

                "-XX:+WhiteBoxAPI",

                "-XX:SharedReadOnlySize=30m",

                gcLog,

                "GCSharedStringsDuringDumpWb")

              .assertNormalExit();

        }

    }

}